Morphological and Structural Study of Nanostructured Tin Dioxide (SnO2) Thin Films by Spray Pyrolysis

Boon Hoong Ong; Heng Choy Lee; Sharifah Bee Abdul Hamid

doi:10.4028/www.scientific.net/AMR.626.672

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 626Morphological and Structural Study of...

Morphological and Structural Study of Nanostructured Tin Dioxide (SnO₂) Thin Films by Spray Pyrolysis

Abstract:

Nanostructured SnO₂thin films were deposited on glass substrate using chemical spray pyrolysis technique. Three influent synthesis parameters, namely (i) the precursor concentration (0.2M and 0.5M), (ii) the substrate temperature (250°C and 350°C) and (iii) doping with zinc (Zn) were investigated in term of their effects on the morphology and structure of SnO₂ thin films. These films were characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM) and energy dispersive X-ray spectrometry (EDX) techniques. The grain size of the films was observed to increase as the concentration of the precursors is increased. Substrate temperature is proved to be crucial in determining the crystallinity of the films as the films are reported to grow at temperature above 270°C. Besides, the addition of dopant was found to reduce the grain size of the film.

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Periodical:

Advanced Materials Research (Volume 626)

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672-676

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.626.672

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Online since:

December 2012

Authors:

Boon Hoong Ong, Heng Choy Lee, Sharifah Bee Abdul Hamid

Keywords:

Precursor Concentration Effect, Spray Pyrolysis, Substrate Temperature Effect, Tin Dioxide Thin Films, Zn Doping

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